A methodology for the identification of glass panes of different origin in a single stained glass window: Application on two 13th century windows |
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| Authors: | Olivier Schalm Ine De Raedt Joost Caen Koen Janssens |
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| Institution: | a Artesis University College of Antwerp, Conservation Studies, Blindestraat 9, B-2000 Antwerp, Belgium;b University of Antwerp, Department of Chemistry, Universiteitsplein 1, B-2610 Antwerp, Belgium |
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| Abstract: | The chemical composition of 11 glass panes originating from two 13th century non-figurative windows were analyzed by means of Scanning Electron Microscopy–Energy Dispersive X-ray system (SEM-EDX). The windows were discovered in the back-wall of the triforium during the restoration of the choir of the cathedral St. Michael and St. Gudule in Brussels (Belgium). In order to determine if these windows were fabricated with glass of different origin or not, the compositional difference between the panes were compared with the variation in composition as a result of the following causes: (1) compositional fluctuation between panes cut from the same sheet of glass, (2) compositional fluctuation caused when panes are cut from different sheets that were made with the same batch, (3) compositional fluctuation caused when the glass is made from different batches at the same production center, and (4) compositional fluctuation as a result of glass produced at different fabrication centers. |
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| Keywords: | Stained glass windows Medieval glass Chemical composition Compositional variation |
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